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Finding the Fourth Proportional to 93,042.96, 139,501.23 and 47,338.32

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Solution

The fourth proportional to 93,042.96, 139,501.23 and 47,338.32 is: 70,975.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,042.96 : 139,501.23 = 47,338.32 : x
  2. Step 2: Convert to fraction form
    93,042.96/139,501.23 = 47,338.32/x
  3. Step 3: Cross multiply
    93,042.96x = 139,501.23 × 47,338.32
  4. Step 4: Simplify right side
    93,042.96x = 6,603,753,866.13
  5. Step 5: Solve for x
    x = 6,603,753,866.13/93,042.96
  6. Step 6: Final answer
    x = 70,975.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.